the "news nation" is following big developing news in the david petraeus resignation and the fallout. the associated press reported his affair with author paula broadwell will be the subtle of a meeting on capitol hill. th there's a chance that petraeus will still have to testify before congress and soon regarding the deadly aattack on the u.s. consulate in benghazi. petraeus was one of three witnesses on the agenda for that closed senate hearing, which at this point is still scheduled to happen on capitol hill this thursday. either way, congress could collagen petraeus before them even as they question why they were kept in the dark about a month-long fbi inquiry that ended his tenure at the country's top spy agency. >> this thing just came so fast and so hard, and since then it's been like peeling an onion. every day another peel comes off, and you see a whole new dimension to this. my concern has actually escalated over the last few days. >> and questions also remain about why the president and the white house were not notified about the scandal surrounding petraeus until late last